Governor for motors.



W.- N. DENNISON.

GOVERNOR FOR MOTORS. APPLIGATION FILED APR.9, 1910.

Patented May 6, 1913.

2 SHEETS-SHEET 1.

WILBUBN N. DENNISON, 01E MERCHANTVILLE, NEW JERSEY, ASSIGNOR T VICTOR TALKING MACHINE CQMPANY, A CORPGRATION OF NEW JERSEY.

GGVEETN'OR FOE. MQTOBS.

roeoeev.

To all whom it may concern:

Be it known that I, WILBURN N. DENNISON, a citizen of the United States, and a residentof the borough of ivierchantville, in county of Camden and State of flow Jersey, have invented certain new and useful linprovements in Governors for Motors, of which the following is a specification, referones being had to the accompanying drawmgs.

This invention relates to mechanism for governing the speed of spring motors, and particularly to that class of governing mechanism which is adapted for sound re producing machines.

The principal object of this invention is tov provide simple and eiiicient mechanism that will insure a uniform speed, irrespective of possible irregularities in the cooperative parts.

The form of this invention hereinafter de scribed provides a governor having a rotary friction disk whose axial position tends to vary in accordance with the speed of rotation of suitable governor balls; a-friction pad arranged to en age said friction dish;

a holder for said riction pad comprisingrelatively movable members forming a universal joint whereby the axis of said fric'- tion pad iscapable of gyration; and means arranged to shift said holder toward and away from said friction disk.

This invention also comprises the various novel features of construction and arrangement hereinafter more definitely specified.

In the accompanying drawings, Figure 1 is an inverted plan view of the motor mechanism comprising a governor embodying a convenient form of this invention; Fig.2 is anenlarged vertical longitudinalsectional view of the governor mechanism taken on the line 2-2 in Fig 1; Fig. 3 is an enlarged transverse vertical. sectional view of the mo In said figures, the motor frame 8 comprises the hangers'f) and 10, which provide bearings for the winding shaft 12 and the Patented 8, 7.813.

spring motor shaft 13. The metorshaft 13 carries the spring box 1%, worm gear, 15, and gear 16, arranged to mesh with the pinion 19 on the winding shaft 12. The worm gear 15 is in mesh with the worm 20, on the shaft 21, which is suitably jounialed in the bearing 22, on the hanger 9, and provided with the worm gear The worm gear or is in mesh with the worm 25, on the governor shaft 26,'whose opposite reduced ends form trunnions 28, which are suitably journaled in adjustable bearings 29, removably mounted in the bearing lugs 30,

depending from the frame plate 8, said bear-i ings being suitably securedin adjusted position by the screws 32.

The friction pad 43 is conveniently formedof an annular piece. of leather or other convenient material which is arranged to be carried by the holder, comprising the relatively movable ball and socket members 45 and 16, in such position as to be conveniently engaged with the friction disk 42 with any desired degree of pressure, as hereinafter described. The holder member 45'comprises the flange 47, upon which the friction pad 43 is supported, and the outwardly turned flange 4:8. Said holder member so also coniprises the centrally disposed outwardly extending flange 49, having a curved face forming the zone of a sphere, as best shown in Fig. 6, and arranged to engage the inner conical face 51 of the holder member 46.

The friction pad holder is conveniently supported by the yoke frame 53, which is provided with bearing screws 54 in threaded engagement with the arms 55 of said frame The reduced shanks 56 of said screws conveniently form trunnions extending through the annular wall of the holder member 46 in rotatable relation therewith, and project into the groove 58, formed by the flanges 48 and 49 in the holder member 45.. Sto pins 60, are disposed across said groove lot? 58 in. such relation as to permit a slight ro-' tar; movement of' the holder member 45, with respect to the holder member 46. Said rotary movement being limited by the engagement of said pins 60 with said trunnions 56, as shown in Figs. 3 and 4, so that,

as may be readily seen, while the member and-its friction pad:'43 are prevented of the friction ad 43 to a possible wabbling disk 42, inevent of its being motion of the I sli htly out of true.

e central apertureofthe annular friction ad holder is sufliciently large to surround the sleeve 40, so that it ma be conveniently, shifted toward and rom the friction disk 42 without contacting with any of the rotating parts of the governor.

The yoke frame 53 is conveniently mounted on the shaft 65, which is journa ed in the bearings '66, and has its free end bent to form the lever 68, which is arranged to be shifted by the set screw 69, in threaded engagement with the base frame 70, and adjustable to regulate the speed of the motor. Said oke frame 53is' rovided with the upturne lug 71, having t e set screw 7 2 in threaded eng'a ement therewith, arranged to engage a sultablesocket 73, in the shaft 65, whereby any movement of the lever 68 effects a movement of the friction pad 43, relative to the I friction disk 42, de ending upon the direction of movement 0 said lever.

\ In the operationof the motor,.the governor spindle is driventhrough the gears and worms above described, and as the speed of said shaft increases, the governor balls 35 are centrifugally extended, and the fric-v tion disk 42 consequentl shifted toward the friction pad 43,-whifc is set to such a position as to determine the speed desired, so that when said disk 42, engages the friction pad 43 with a suitable pressure, the spe d of the shaft 26'is diminished in accor ance with the frictional engagement of the contiguous surfaces, whereby the speed of said. shaft 26 is maintained uniform. Any desired uniform speed may be readily maintained, or the motor completely stop ed, by

adjusting the thumb, screw 69, which, t rough with ,r

the lever 68, sets the friction pad 43 at the position desired; for instance, by rotating the screw to shift it toward the lever 68, act to Fig. 2, the friction pad 43 is shift to reduce the speed of the motor, and the reverse movement of said thumb screw titheflects an increased speed of said motor.

It is not desired to limit this invention to the precise details of construction and arrangement herein set forth, as-it is obvious that various modifications may be made therein without departing from the essential features of this invention as defined in the appended claims.

Having thus described my invention, I claim:

1. In a governor, the combination with a rotatable member, of a friction pad arranged. to engage said member, to control the speed thereof, and having a universal jointed sup port, comprising relatively rotatable ball andsocketmembers, one of which comprises an internal conical surface and the other having a pair of flanges and an interposed groove,

one of said flanges comprising a spherical zone arranged to en age said conical surface,

and capable of-shi ting in variable angular positions relative to said conical surface, members connecting said flanges and means extending from the first-named ef-asaid ball and socket members into an annular path of said last-named member, to limit the relative rotary movement of said ball and socket members.

2. In a governor, the combinationwith a rotatable member, of a friction pad arrang d to engage said member, to control the spec thereof, and having a universal jointed support, comprising relatively rotatable ball and socket members, one of which comprises an internal conical surface and the other having a pair of flanges and an interposed groove, one of said flanges comprising a spherical zone arranged to an age said conical surface, and capable of shifting in variable angular positions relative to said conical surface, members connecting said flanges and means extending from the first-named of said ball and socket members into an annular path of said last-named member, to limit the relative rotary movement of said ball and socket members, said rotary movement being distinct from and independent of the gyration of said universal joint.

3. In a governor, the combination witha rotatable member, of a friction pad arranged to engage said member, to control the speed thereof, and having a universal jointed support, comprising relatively rotatable ball and socket members, one of which comprises an internal conical surface and the othenhaving a pair of flanges and an interposed groove, one of said flanges comprising a spherical zone arranged to en age said conical sursaid ball and socket members.

a l In governor, the combination with a rota table member, of a friction pad arranged to engage said member, to control the speed thereof, and havin a universal jointed support, comprising re atively rotatable ball and socket members, one of which comprises an internal conical surface and the other having a pair of flanges and an interposed gr'oove, one of said flanges comprising a spherical zone arranged to engage said conical surface, and capable of shifting in variable angular positions relative to said conical surface, pins brid ing said groove and pins proecnng inwardly from the first-named of said ball and socket members, adjacent to 15 and in the annular path of said first-named pins to limit the relative rotary movement of said ball and socket members, said rotary movement being distinct from and independent of the gyration of said universal 20 oint. J In Witness; whereof I have. hereunto set my hand this 7th day of April, A. D. 1910'.

WILBURN nfnnnnrson.

Witnesses:

FRANK B. MIDDLETON, J12, HARRY Conn KENNEDY. 

